25G Tx1330nm/Rx1270nm 10km BiDi SFP28 Transceiver

1. SFP28-25G-BX10D-T02#131003 25G Tx1330nm/Rx1270nm 10km BiDi SFP28 Transceiver Product 25G Tx1330/Rx1270nm 10km BiDi SFP28 Transceiver Model SFP28-25G-BX10D-T02 File No. SFP28-25G-BX10D-T02#131003 Version 1.0 Issuing Date Specification Revision Record Date Version Page Revision Description Prepare Approve 2020-09-29 1.0 Jiang L All right reserved by Guilin GLsun Science and Tech Group Co., LTD. Without written permission, any unit or individual can’t reproduce, copy or use it for any commercial purpose. - 1 - Guilin GLsun Science and Tech Group Co., LTD. - 1 - Tel: +86-773-3116006 info@glsun.com Web: www.glsun.com

2. SFP28-25G-BX10D-T02#131003 Product Description Glsun SFP28-25G-BX10D DFB 25.78Gbps SFP28 BIDI transceiver is designed for use in 25Gb/s data rate over single-mode fiber for link length 10Km. The transceiver designs are optimized for high perform-ance and cost effective to supply customers the best solutions for 25Gb/s single lane optical links. Product Feature ● Compliant to SFF-8402 for SFP28 solution ● Digital Diagnostic Monitor Interface with SFF-8472 ● Hot pluggable SFP+ footprint ● 1330nm/1270nm DFB transmitter ● Up to 25.78Gb/s data links ● Applicable for 10Km SMF connection ● High transmission margin ● Low power consumption<1.5W ● Single 3.3V power supply ● Operating case temperature: Commerical:0 to 70°C; Industrial:-40 to 85°C Applications ● 25.78 Gb/s single lane ● Other optical links Absolute Maximum Ratings Parameter Symbol Vcc Ts RH Min. -0.5 -40 0 Max. 4.0 85 85 Unit V °C % Note Supply Voltage Storage Temperature Relative Humidity Note: Stress in excess of the maximum absolute ratings can cause permanent damage to the module General Operating Characteristics Parameter Symbol Min. Typ 25.78 3.3 Max. Unit Gb/s V mA °C °C Note Data Rate Supply Voltage Supply Current Operating Case Temp. Operating Case Temp. Vcc Icc Tc Ti 3.13 3.47 450 70 85 0 -40 Guilin GLsun Science and Tech Group Co., LTD. - 2 - Tel: +86-773-3116006 info@glsun.com Web: www.glsun.com

3. SFP28-25G-BX10D-T02#131003 Electrical Input/Output Characteristics Parameter Symbol Min. Typ Max. Unit Note Transmitter 120 2.0 Diff. input voltage swing 820 mVpp 1 H VIH Vcc+0.3 Tx Disable input V L H VIL VOH 0 0.8 2.0 Vcc+0.3 Tx Fault output V 2 L VOL Zin 0 0.8 Input Diff. Impedance 100 Ω Parameter Symbol Min. Typ Max. Unit Note Receiver Diff. output voltage swing 340 2.0 650 800 mVpp 3 H VOH Vcc+0.3 V Rx LOS Output 2 L VOL 0 0.8 Note 1) TD+/- are internally AC coupled with 100Ω differential termination inside the module. Note 2) Tx Fault and Rx LOS are open collector outputs, which should be pulled up with 4.7k to 10kΩ resistors on the host board. Pull up voltage between 2.0V and Vcc+0.3V. Note 3) RD+/- outputs are internally AC coupled, and should be terminated with 100Ω (differential) at the user SERDES. Optical Characteristics Parameter Symbol Min. Transmitter 1250 Typ Max. Unit Note 1270 1290 Operating Wavelength nm 1310 1330 1350 Ave. output power (Enabled) Extinction Ratio spectral width(-20dB) Po -3 5 dBm ER Δλ 3.5 dB nm 1 Relative Intensity Noise Dispersion penalty RIN -130 dB/Hz 3 dB Parameter Symbol Min. Typ Max. Unit Note Receiver 1310 1250 1330 1270 1350 1290 Operating Wavelength nm Stressed Receiver OMA Sensitivity Average Receiver Power LOS Assert LOS De-assert LOS Hysteresis Psen -13 dBm Pimax Pa Pd Pd-Pa -13.3 -30 2 dBm dBm dBm dB -13 0.5 5 Guilin GLsun Science and Tech Group Co., LTD. - 3 - Tel: +86-773-3116006 info@glsun.com Web: www.glsun.com

4. SFP28-25G-BX10D-T02#131003 Pin Definitions And Functions Pin Symbol Name/Descri ption 1 2 VEET [1] Tx_FAULT [2] Transmitter Ground Transmitter Fault 3 Tx_DIS [3] Transmitter Disable. Laser output disabled on high or open 4 5 SDA [2] SCL [2] 2-wire Serial Interface Data Line 2-wire Serial Interface Clock Line 6 MOD_ABS [4] Module Absent. Grounded within the module 7 8 RS0 [5] RX_LOS [2] Rate Select 0 Loss of Signal indication. Logic 0 indicates normal operation 9 RS1 [5] Rate Select 1 10 11 VEER [1] VEER [1] Receiver Ground Receiver Ground 12 RD- Receiver Inverted DATA out. AC Coupled 13 14 RD+ VEER [1] Receiver DATA out. AC Coupled Receiver Ground 15 VCCR Receiver Power Supply 16 17 VCCT VEET [1] Transmitter Power Supply Transmitter Ground 18 TD+ Transmitter DATA in. AC Coupled 19 20 TD- VEET [1] Transmitter Inverted DATA in. AC Coupled Transmitter Ground Note: 1. Module circuit ground is isolated from module chassis ground within the module. 2. Should be pulled up with 4.7k – 10k ohms on host board to a voltage between 3.15Vand 3.6V. 3. Tx_Disable is an input contact with a 4.7 kΩ to 10 kΩ pullup to VccT inside the module. 4. Mod_ABS is connected to VeeT or VeeR in the SFP+ module. The host may pull this contact up to Vcc_Host with a resistor in the range 4.7 kΩ to10 kΩ.Mod_ABS is asserted “High” when the SFP+ module is physically absent from a host slot. 5. RS0 and RS1 are module inputs and are pulled low to VeeT with > 30 kΩ resistors or NC in the module,don’t use. Guilin GLsun Science and Tech Group Co., LTD. - 4 - Tel: +86-773-3116006 info@glsun.com Web: www.glsun.com

5. SFP28-25G-BX10D-T02#131003 Typical interface circuit Recommended power supply filter Notes: Inductors with DC resistance of less than 1Ω should be used in order to maintain the required voltage at the SFP input pin with 3.3V supply voltage. When the recommended supply filtering network is used, hot plugging of the SFP transceiver module will result in an inrush current of no more than 30 mA greater than the steady state value. Guilin GLsun Science and Tech Group Co., LTD. - 5 - Tel: +86-773-3116006 info@glsun.com Web: www.glsun.com

6. SFP28-25G-BX10D-T02#131003 Package Dimensions Ordering Information Part Number Description SFP28 LR 25.78G, 0~70℃, 1330/1270nm, BIDI 10Km SFP28-25G-BX10D-T02-C SFP28 LR 25.78G, -40~85℃, 1330/1270nm, BIDI 10Km SFP28-25G-BX10D-T02-I Guilin GLsun Science and Tech Group Co., LTD. - 6 - Tel: +86-773-3116006 info@glsun.com Web: www.glsun.com